Kerr Mcgee Chemical Corp Columbus

⚠ Superfund · Cleanup underway

The EPA’s Site strategy has been to address immediate cleanup needs by reducing exposure pathways to nearby residents with removal or remedial actions and to use an operable unit strategy to work from the simplest to the most complex challenges at the site.

Location

CityColumbus
CountyLowndes County
StateMississippi
Coordinates33.50977, -88.40969

Contaminants of concern

Contaminated media

Cleanup timeline

  1. Initial Assessment Completed — 06/01/1984
  2. Proposed to the National Priorities List — 03/10/2011
  3. Finalized on the National Priorities List — 09/16/2011
  4. Remedial Investigation Started — 04/27/2011
  5. Remedy Selected — 05/06/2019
  6. Remedial Action Started — 06/13/2019
  7. Construction Completed — Not Yet Achieved
  8. Deleted from National Priorities List — Not Yet Achieved
  9. Most Recent Five-Year Review — 09/29/2024
  10. Achieved Sitewide Ready for Anticipated Reuse — Not Yet Achieved

EPA references

EPA-regulated facilities nearby

Understanding this Superfund site

Kerr Mcgee Chemical Corp Columbus is a federal Superfund site in Mississippi. The Superfund program, created by Congress in 1980, addresses sites where hazardous substances have been released or threaten release into the environment. EPA scores potential sites using the Hazard Ranking System; those that score high enough are placed on the National Priorities List.

Current status: Cleanup underway. Active cleanup is underway, meaning EPA has approved a remediation plan and work is in progress. Cleanup timelines vary widely — some sites take decades depending on contamination depth, groundwater involvement, and funding availability.

EPA has identified 10 contaminants of concern at this site, including 1,1'-biphenyl, 2,3,7,8-tetrachlorodibenzo-p-dioxin (tcdd) toxicity equivalents (teq), 2-methylnaphthalene. Contamination has been detected in soil.

If you live near this site and have health concerns, your state health department can provide site-specific guidance. EPA maintains a community involvement program for most NPL sites, and site documents — including the Record of Decision, five-year reviews, and public health assessments — are typically available through EPA's Superfund site profile.